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Dissertations / Theses on the topic 'Optical remote sensing satellite'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Denniss, Anthony Maurice. "The evaluation of multichannel shortwave infrared (SWIR) optical data from the Japanese Earth Resources Satellite (JERS-1), for geological applications." Thesis, Open University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264859.

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2

Garcia-Rubio, Gabriela. "Evaluation of shoreline change using optical satellite images : case study of Progreso, Yucatán." Thesis, University of Plymouth, 2012. http://hdl.handle.net/10026.1/921.

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A technique to extract the shoreline from optical satellite images has been developed, evaluated and applied to the case study site of Progreso, Yucatán, México. This site was chosen as it is frequently subject to hurricanes, shows shoreline erosion and has a paucity of coastal data. The area under investigation is an 8 km length of shoreline that faces north into the Gulf of México. A novel method to extract satellite-derived shorelines (SDS) was developed ensuring the maximum contrast between sea and land. The SDS was validated using quasisimultaneous in situ shoreline measurements from one

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3

Shupe, Scott Marshall. "Extending a field-based Sonoran desert vegetation classification to a regional scale using optical and microwave satellite imagery." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/289136.

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Vegetation mapping in and regions facilitates ecological studies, land management, and provides a record to which future land changes can be compared. Accurate and representative mapping of desert vegetation requires a sound field sampling program and a methodology to transform the data collected into a representative classification system. Time and cost constraints require that a remote sensing approach be used if such a classification system is to be applied on a regional scale. However, desert vegetation may be sparse and thus difficult to sense at typical satellite resolutions, especially

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4

Amador, Nathan S. "Spatial and Temporal Characteristics of Supra-glacial Melt Lakes in west-central Greenland from Satellite Optical Remote Sensing." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1236784278.

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5

Scott, Karen Patricia 1964. "Radiometric calibration of on-orbit satellite sensors using an improved cross-calibration method." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282831.

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As the field of remote sensing continues to grow with the launches of many new and complex satellite sensors in the next year, the ability to provide absolute calibration of these sensors becomes paramount for the many environmental studies proposed. In particular, temporal studies that monitor global changes in atmospheric constituents, ocean and terrestrial temperatures, and vegetation require that changes in the sensor itself, over the period of the study, be understood so that the data may be corrected. Numerous studies have established that satellite sensors change in orbit with respect t

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6

Gonzalez, Sanpedro Maria del Carmen. "Optical and radar remote sensing applied to agricultural areas in Europe." Toulouse 3, 2008. http://www.theses.fr/2008TOU30228.

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L'objectif de la thèse est de développer des méthodes de cartographie et de suivi des cultures basées sur des données de télédétection, radar et optique. Les résultats pourront être combinés avec d'autres techniques, notamment avec des modèles de croissance des cultures, pour améliorer la prévision des récoltes. Quatre instruments différents, 3 sur satellite (LANDSAT-TM, ENVISAT-MERIS, ENVISAT-ASAR) et 1 aéroporté (AIRSAR) sont utilisés dans trois régions d'étude en Europe (Barrax, Toulouse et Flevoland). Les travaux sont présentés en deux parties, optique et radar. Dans la première partie, le

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7

Scaduto, Lucimara Cristina Nakata. "Desenvolvimento e avaliação do desempenho de sistema óptico aplicado a sensoriamento remoto orbital." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-02032009-135211/.

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Este trabalho tem como objetivo apresentar o sistema óptico desenvolvido para a câmera WFI (Wide Field Imaging Camera) que integrará os satélites CBERS 3 e 4 (China Brazil Earth Resources Satellite). O Brasil é responsável por duas das câmeras dos satélites CBERS 3 e 4, a WFI e a MUX (Multispectral Camera). Estas câmeras são destinadas a sensoriamento remoto orbital da Terra. É a primeira vez que câmeras destinadas a este tipo de aplicação são inteiramente desenvolvidas e construídas no país. Devido ao alto nível de vibração durante o vôo, à exposição a vácuo e a radiação espacial durante o pe

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8

Frost, Edmond M. "Global scale estimates of aerosol particle characteristics." Thesis, Monterey, California. Naval Postgraduate School, 1988. http://hdl.handle.net/10945/23245.

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Approved for public release; distribution is unlimited<br>NOAA-7 AVHRR data from April 1982 and 1983 were used to perform a global scale analysis of aerosol particle characteristics. Several improvements were incorporated into an AVHRR multichannel satellite data technique developed by Pfeil (1986). This included better cloud and sunglint discrimination, removal of Rayleigh radiance and accounting for ozone absorption. The characteristics analyzed were optical depth and Aerosol Particle Size Index (S₁₂). S₁₂ provides the slope of the aerosol particle size distribution curve. Both of these

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9

Harvey, Therese. "Bio-optics, satellite remote sensing and Baltic Sea ecosystems : Applications for monitoring and management." Doctoral thesis, Stockholms universitet, Institutionen för ekologi, miljö och botanik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-119578.

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Earth observation satellites cover large areas with frequent temporal repetition and provide us with new insight into ocean and coastal processes. Ocean colour measurements from satellite remote sensing are linked to the bio-optics, which refers to the light interactions with living organisms and dissolved and suspended constituents in the aquatic environment. Human pressures have changed the aquatic ecosystems, by, for example, the increased input of nutrient and organic matter leading to eutrophication. This thesis aims to study and develop the link between bio-optical data and the remote se

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10

Marquis, Jared Wayne. "Estimating optically-thin cirrus cloud induced cold bias on infrared radiometric satellite sea surface temperature retrieval in the tropics." Thesis, The University of North Dakota, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10163609.

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<p> Passive longwave infrared radiometric satellite-based retrievals of sea surface temperature (SST) at instrument nadir are investigated for cold bias caused by unscreened optically-thin cirrus (OTC) clouds (cloud optical depth ≤ 0.3; COD). Level 2 split-window SST retrievals over tropical oceans (30° S - 30° N) from Moderate Resolution Imaging Spectroradiometer (MODIS) radiances collected aboard the NASA Aqua satellite (Aqua-MODIS) are collocated with cloud profiles from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) instrument, mounted on the independent NASA CALI

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11

Holman, Kiyomi. "Testing Approaches and Sensors for Satellite-Derived Bathymetry in Nunavut." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41402.

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Nearshore bathymetry in the Canadian Arctic is poorly surveyed, but is vital knowledge for coastal communities that rely on marine transportation for resources and development. Nautical charts currently available are often outdated and surveying by traditional methods is both time consuming and expensive. Satellite-derived bathymetry (SDB) offers a significantly cheaper and faster option to provide information on nearshore bathymetry. The two most common approaches to SDB are empirical and physics-based. The empirical approach is simple and typically does well when calibrated with high-quality

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12

Gallie, Elizabeth Ann. "Chromaticity analysis of LANDSAT Multispectral Scanner and Thematic Mapper imagery of Chilko Lake, British Columbia, using a theoretical optical water quality model." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30572.

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Chromaticity analysis of LANDSAT Multispectral Scanner (MSS) imagery of Chilko Lake, B.C. reveals a. locus whose shape has not been previously reported. To investigate the cause of this and to come to a broader understanding of chromaticity analysis for MSS and Thematic Mapper (TM) data, an optical water quality model has been used. The model is composed of a four component reflectance model (R-model), an interface model and an atmospheric model. The R-model was calibrated for Chilko Lake by determining the specific absorption and backscattering spectra for suspended minerals (SM), chlorophyll

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13

Kay, Susan Barbara. "Radiative transfer modelling for sun glint correction in marine satellite imagery." Thesis, University of Exeter, 2011. http://hdl.handle.net/10036/3523.

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Remote sensing is a powerful tool for studying the marine environment; however, many images are contaminated by sun glint, the specular reﬂection of light from the water surface. Improved radiative transfer modelling could lead to better methods for estimating and correcting sunglint. This thesis explores the eﬀect of using detailed numerical models of the sea surface when investigating the transfer of light through the atmosphere-ocean system. New numerical realisations that model both the shape and slope of the sea surface have been created; these contrast with existing radiative transfer mo

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14

Dey, Vivek. "A Supervised Approach For The Estimation Of Parameters Of Multiresolution Segementation And Its Application In Building Feature Extraction From VHR Imagery." Thesis, Fredericton: University of New Brunswick, 2011. http://hdl.handle.net/1882/35388.

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With the advent of very high spatial resolution (VHR) satellite, spatial details within the image scene have increased considerably. This led to the development of object-based image analysis (OBIA) for the analysis of VHR satellite images. Image segmentation is the fundamental step for OBIA. However, a large number of techniques exist for RS image segmentation. To identify the best ones for VHR imagery, a comprehensive literature review on image segmentation is performed. Based on that review, it is found that the multiresolution segmentation, as implemented in the commercial software eCognit

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15

Seignovert, Benoît. "Analyse de la couche détachée de Titan à l'aide de l'instrument Cassini/ISS Aerosols optical properties in titan’s detached haze layer before the equinox." Thesis, Reims, 2017. http://www.theses.fr/2017REIMS044.

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Chargée de brume photochimique, l'atmosphère de Titan est le siège d'une activité dynamique complexe évoluant lentement au gré des saisons. Tout comme la couche d'ozone sur Terre, la couche détachée sur Titan est une fine bande d'aérosols englobant la partie la plus externe de son atmosphère. Depuis sa découverte par les sondes Voyager dans les années 80, elle attise les curiosités quant à sa composition et ses mécanismes de formation.Grâce à la sonde Cassini, en orbite autour de Saturne depuis 2004, nous avons une opportunité unique de l'observer sur près d'une demie année titanienne. Cette t

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16

CAZZANIGA, ILARIA. "Processing and analysis of latest generation satellite data for monitoring optically complex waters." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2019. http://hdl.handle.net/10281/241143.

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Le acque interne sono una risorsa fondamentale ed estremamente sensibile ai cambiamenti climatici e per questo sono state inserite nella lista delle Essential Climate Variables. La necessità di un loro monitoraggio è sottolineata da diversi progetti e da direttive come l’europea Water Frame Directive (WFD). Le tecniche di telerilevamento per il monitoraggio delle acque si sono diffuse negli ultimi decenni come uno strumento di supporto alle misure limnologiche. La grandezza fisica usata per derivare le mappe di parametri di qualità delle acque (WQP), come la concentrazione di clorofilla-a (ch

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17

Zuluaga-Arias, Manuel D. "Spatio-temporal variability of aerosols in the tropics relationship with atmospheric and oceanic environments." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41202.

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Earth's radiation budget is directly influenced by aerosols through the absorption of solar radiation and subsequent heating of the atmosphere. Aerosols modulate the hydrological cycle indirectly by modifying cloud properties, precipitation and ocean heat storage. In addition, polluting aerosols impose health risks in local, regional and global scales. In spite of recent advances in the study of aerosols variability, uncertainty in their spatial and temporal distributions still presents a challenge in the understanding of climate variability. For example, aerosol loading varies not only from

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18

Reed, Benjamin Edward. "Measurements of the complex refractive index of volcanic ash." Thesis, University of Oxford, 2016. http://ora.ox.ac.uk/objects/uuid:6df66964-7e17-4ef5-a984-9a863a74e4e6.

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This thesis describes laboratory measurements of the complex refractive index of volcanic ash particles. These measurements are needed to model the radiative impact of volcanic ash, vital for accurate satellite remote sensing. Three experimental methods have been developed, and the results for the complex refractive index and optical properties of a wide range of volcanic ash samples are presented. Measurements were made of the spectral transmission of radiation through suspended volcanic ash particles inside an aerosol cell, using a Fourier transform spectrometer at infrared wavelengths and t

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19

Cavonius, Johansson Hanna, and Jens Henriksson. "Skattning av skogliga variabler genom satellitbilder från Sentinel 2 : Estimation of forest variables using satellite images from Sentinel 2." Thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-94004.

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Stora arealer skog behöver övervakas. Att göra detta på ett kostnadseffektivt sätt är något som skogssektorn efterfrågar. Syftet med studien var att undersöka möjligheten att skatta skogliga variabler med satellitbilder från Sentinel 2. Korrelationen mellan granskogens uppmätta reflektans i satellitbilder från Sentinel 2 och uppmätta variablerna i fält har beräknats och analyserats. Resultatet visar att styrkan i korrelation skiljer sig mellan olika rumsliga upplösningar, vilken tid på året satellitbilderna är tagna, vilka spektrala band och vegetationsindex som används samt vilka skogliga var

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20

Cazals, Cécile. "Apport des données Sentinel-1 pour la cartographie des milieux humides." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1226/document.

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Les milieux humides sont menacés par le changement climatique et l'anthropisation des milieux naturels. La télédétection est un moyen efficace de suivre des variables environnementales sur de grands espaces. Cependant, lorsqu’il s’agit de l’étude de la dynamique hydrologique, une résolution temporelle importante est indispensable. Or celle-ci est difficilement accessible par l'imagerie optique satellitaire du fait de l’important couvert nuageux qui masque le sol. Les capteurs radars, travaillant dans le domaine des micro-ondes, sont tout particulièrement adaptés à la caractérisation des dynami

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21

Hong, Guowei. "Satellite image processing for remote sensing applications." Thesis, University of Central Lancashire, 1995. http://clok.uclan.ac.uk/1878/.

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This thesis investigates areas of image compression with particular reference to remote sensing imagery. The research described was carried out in four specific areas, namely, discrete cosine transform (DCT) for remote sensing imagery, lossless image compression based on conditional statistics, exploiting interband redundancy for remote sensing imagery, neural networks for lossless image compression. The effect of using standard compression algorithm (JPEG's DCT) on the remote sensing image data is investigated. This involves visual and statistical assessment of the errors produced, both in th

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22

Rinne, Eero Juhani. "Satellite altimeter remote sensing of ice caps." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5762.

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This thesis investigates the use of satellite altimetry techniques for measuring surface elevation changes of ice caps. Two satellite altimeters, Radar Altimeter 2 (RA-2) and Geoscience Laser Altimeter System (GLAS) are used to assess the surface elevation changes of three Arctic ice caps. This is the first time the RA-2 has been used to assess the elevation changes of ice caps - targets much smaller than the ice sheets which are the instrument’s primary land ice targets. Algorithms for the retrieval of elevation change rates over ice caps using data acquired by RA-2 and GLAS are presented. Th

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23

Knight, Edward Joseph 1968. "Polarization effects in the radiometric calibration of earth remote sensing satellites." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/284106.

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Recent efforts in Earth remote sensing have focused on accurately measuring top-of-atmosphere and surface leaving radiances. One factor that must be accounted for in the radiometric calibration of an Earth remote sensing satellite is the polarization of the radiance. This dissertation provides a comprehensive analysis of how polarization has an impact on the radiometric calibration of visible through long wave infrared Earth remote sensing satellites (0.4 through ∼15 μm). The first part of this dissertation concentrates on reviewing the current status of calibration and of polarization measure

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24

Sneed, William A. "Satellite Remote Sensing of Arctic Glacier-Climate Interactions." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/SneedWA2007.pdf.

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25

Suttie, Robert Andrew. "Millimetre wave remote sensing of the atmosphere." Thesis, Heriot-Watt University, 1991. http://hdl.handle.net/10399/863.

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Harris, Chad Vincent. "Satellite imagery and discourses of transparency /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2003. http://wwwlib.umi.com/cr/ucsd/fullcit?p3099986.

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27

Harvey, Jack. "Estimation of population using satellite imagery." Thesis, The Author [Mt. Helen, Vic.] :, 1999. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/42067.

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The basic aims of this research were twofold; to extend and refine statistical image analysis methodologies for directly estimating small area populations and population densities from Landsat TM images and to validate procedures developed and to explore their robustness to geographical and seasonal differences within Australia, and hence to explore the potential of this methodology to provide a genuine operational alternative to existing methods of population estimation."<br>Doctor of Philosophy

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28

Jin, Xiaoying. "Automatic extraction of man-made objects from high-resolution satellite imagery by information fusion." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/5816.

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Thesis (Ph.D.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (November 15, 2006) Vita. Includes bibliographical references.

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29

Miglhorance, Edmar. "Mapping Wild Leek with UAV and Satellite Remote Sensing." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/38865.

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Wild leek (Allium tricoccum) is a spring ephemeral of northeastern North America. In the Canadian province of Quebec, it is listed as threatened due to human harvesting, and in Gatineau Park its presence is used as an indicator of human impact. Wild leek grows in patches on the forest floor, and before the tree canopy develops its green leaves are clearly visible through the bare branches of deciduous forests, allowing it to be observed with optical remote sensing. This study developed and tested a new method for monitoring wild leek across large geographic areas by integrating field observati

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Pretorius, Cindy. "Digital satellite remote sensing for terrestrial coastal zone management." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52804.

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Thesis (MA)--Stellenbosch University, 2002.<br>ENGLISH ABSTRACT: The unique and often fragile environment of the coastal zone is placed under increasing pressure by human development. It is expected that three quarters of the world's population will be living within 60km of the coast by the year 2020. Thorough planning and management are required to prevent coastal degradation. In South Africa, coastal management efforts are being promoted through the implementation of a White Paper for sustainable coastal development. A Coastal Decision Support System (CDSS) was developed to empower lo

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31

De, Chiara Giovanna. "Satellite remote sensing for surface soil water content estimation." Doctoral thesis, Universita degli studi di Salerno, 2010. http://hdl.handle.net/10556/125.

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2008 - 2009<br>Satellite remote sensing is a useful source of observations of land surface hydrologic variables and processes and could be a practical substitution of conventional in-situ monitoring. Most of hydrological dynamic processes change not only throughout the years but also within weeks or months and their monitoring requires frequent observations. The most prominent advantage of the remote sensing technologies is that they offer a synoptic view of the dynamics and spatial distribution of phenomena and parameters, often difficult to monitor with traditional ground survey, wit

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Smith, Stephen Roy Walter. "Remote optical fibre temperature and groundwater sensing." Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266224.

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Kaur, Amaratpal. "Optical remote sensing of hypertensive blood vessels." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/32228.

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The aim of this research is to investigate the effects of hypertension on small artery structure by extending the instrumentation which is available for optical analysis of vessels in-vitro. Conventionally, arterial vessels are pressurised in a perfusion myograph and are analysed by video microscopy. A key objective of this research is to enable the examination of vessels by absorption spectroscopy.

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Rahman, Abdullah Faizur 1963. "Monitoring regional-scale surface hydrologic processes using satellite remote sensing." Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/191212.

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Satellite-based remotely sensed data were used to estimate regional-scale surface energy fluxes and a water deficit index of a semi-arid heterogeneous region in southeast Arizona. Spectral reflectance and radiometric temperature of the surface, derived from the digital counts of TM bands of LANDSAT-5 satellite, were used for this purpose. These reflectance and temperature, along with conventional meteorological information of the region, were used as inputs to numerical models which estimate surface energy fluxes. Point-based meteorological data of the region were spatially extrapolated over a

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Ünsalan, Cem. "Multispectral satellite image understanding." Columbus, Ohio : Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc%5num=osu1061903845.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xix, 235 p. : ill. (some col.). Advisor: Kim L. Boyer, Department of Electrical Engineering. Includes bibliographical references (p. 216-235).

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Young, Eric R. "Evaluating and monitoring habitat loss using satellite remote sensing imagery." Thesis, University of Ottawa (Canada), 2009. http://hdl.handle.net/10393/28153.

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Habitat loss is widely acknowledged as the leading cause of extinctions and is occurring at an alarming rate and affecting biodiversity globally. I measured the rate of habitat loss using satellite-based land cover change data. First, I modelled the potential suitable habitat of the Marbled Murrelet on Vancouver Island using two techniques and compared those results to in-situ field measurements. Both modelling techniques predicted declines in suitable habitat between the years, although one technique was better at predicting suitable habitat. I also compared rates of habitat loss in areas of

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Bingham, A. W. "Monitoring Arctic glaciers and ice caps using Satellite Remote Sensing." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.596644.

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Routine monitoring of Arctic glaciers and ice caps is only possible using synthetic aperture radar (SAR). To make effective use of SAR, an algorithm to geocode SAR imagery is developed; the algorithm utilises a DEM to correct for terrain effects. Methods for collecting <I>in situ</I> data are also described; the data are then used to validate backscattering models. It is shown that during the summer melt season the physical optics model provides the best prediction of ERS-1 SAR backscatter from Arctic glaciers. High resolution satellite imagery is required to classify the surface facies on Arc

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Blazye, Christopher J. "An assessment of satellite remote sensing for land cover classification." Thesis, University of Nottingham, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277180.

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Standley, Andy. "Passive microwave remote sensing of snow cover from satellite data." Thesis, University of Bristol, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265475.

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Hlahane, Keneilwe. "Monitoring eutrophication in the Vaal Dam using satellite remote sensing." Master's thesis, Faculty of Science, 2018. http://hdl.handle.net/11427/30022.

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The Vaal Dam is one of South Africa’s important inland water resources, however it is experiencing ecological problems related to eutrophication. The dam supplies water for domestic, industrial, mining and agricultural usage. This research aims to assess and monitor the threats of eutrophication and cyanobacterial blooms within the Vaal Dam. A 10-year archive of remotely sensed satellite data was collected from the medium resolution imaging spectrometer full resolution (MERIS FR) satellite from 2002 to 2012. Data products on chlorophyll-a, cyanobacteria concentration, cyanobacteria and surface

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Franci, Francesca <1983&gt. "The use of satellite remote sensing for flood risk management." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/7181/1/Franci_PhD_thesis_27.pdf.

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Over the last decades the impact of natural disasters to the global environment is becoming more and more severe. The number of disasters has dramatically increased, as well as the cost to the global economy and the number of people affected. Among the natural disaster, flood catastrophes are considered to be the most costly, devastating, broad extent and frequent, because of the tremendous fatalities, injuries, property damage, economic and social disruption they cause to the humankind. In the last thirty years, the World has suffered from severe flooding and the huge impact of floods has cau

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Franci, Francesca <1983&gt. "The use of satellite remote sensing for flood risk management." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/7181/.

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Over the last decades the impact of natural disasters to the global environment is becoming more and more severe. The number of disasters has dramatically increased, as well as the cost to the global economy and the number of people affected. Among the natural disaster, flood catastrophes are considered to be the most costly, devastating, broad extent and frequent, because of the tremendous fatalities, injuries, property damage, economic and social disruption they cause to the humankind. In the last thirty years, the World has suffered from severe flooding and the huge impact of floods has cau

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Baran, Ireneusz. "Advanced satellite radar interferometry for small-scale surface deformation detection." Thesis, Curtin University, 2004. http://hdl.handle.net/20.500.11937/930.

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Synthetic aperture radar interferometry (InSAR) is a technique that enables generation of Digital Elevation Models (DEMs) and detection of surface motion at the centimetre level using radar signals transmitted from a satellite or an aeroplane. Deformation observations can be performed due to the fact that surface motion, caused by natural and human activities, generates a local phase shift in the resultant interferogram. The magnitude of surface deformation can be estimated directly as a fraction of the wavelength of the transmitted signal. Moreover, differential InSAR (DInSAR) eliminates the

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LI, YUANXUN. "SVM Object Based Classification Using Dense Satellite Imagery Time Series." Thesis, KTH, Geoinformatik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233340.

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Wheate, Roger. "Compensating for topographic information from satellite imagery in mountain environments." Thesis, University of St Andrews, 1997. http://hdl.handle.net/10023/15149.

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The use of satellite image data for vegetation mapping and forestry inventory in mountain environments has been greatly restricted by the scene digital values containing a mixture of variations which are due partly to surface cover (albedo) and partly to topography (illumination). Landsat Thematic Mapper (TM) data were selected for a portion of the Rocky Mountains in the Kananaskis Valley, Alberta, Canada and used to derive secondary data channels that sought to compensate for topographic information, by isolating the response due to surface cover. Two multispectral techniques were used: band

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Greiner, Eric. "Mise en oeuvre de méthodes de contrôle optimal pour l'assimilation de données in situ et satellitaires dans les modèles océaniques." Paris 6, 1993. http://www.theses.fr/1993PA066108.

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L'etude porte sur la resolution de problemes de moindres carres non lineaires rencontres dans le domaine des ecoulements oceaniques a grande echelle. L'originalite de ce travail reside dans l'approche qui est faite par la methode du controle optimal plutot que par une technique statistique. Cette methode consiste a minimiser une fonctionnelle correspondant au probleme de moindre carre etudie, le minimum de cette optimisation etant une solution du probleme. Lors des applications numeriques, le gradient de cette fonctionnelle n'est pas calcule par differences finies mais a l'aide du modele adjoi

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Oreopoulos, Lazaros. "Plane parallel albedo bias from satellite measurements." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40417.

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The plane parallel homogeneous (PPH) bias is defined as the difference between the plane parallel cloud albedo, calculated for homogeneous cloud optical depth distributions, and the independent pixel (IP) albedo, which allows for optical depth variability, but assumes that individual cloudy columns transfer solar radiation as plane parallel slabs (horizontal photon transport is neglected). Estimates of the PPH bias from extensive Advanced Very High Resolution Radiometer (AVHRR) observations are provided for areas similar in size to weather and climate model gridboxes. The goal is to investigat

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Julea, Andreea Maria. "Extraction de motifs spatio-temporels dans des séries d'images de télédétection : application à des données optiques et radar." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00652810.

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Les Séries Temporelles d'Images Satellitaires (STIS), visant la même scène en évolution, sont très intéressantes parce qu'elles acquièrent conjointement des informations temporelles et spatiales. L'extraction de ces informations pour aider les experts dans l'interprétation des données satellitaires devient une nécessité impérieuse. Dans ce mémoire, nous exposons comment on peut adapter l'extraction de motifs séquentiels fréquents à ce contexte spatio-temporel dans le but d'identifier des ensembles de pixels connexes qui partagent la même évolution temporelle. La démarche originale est basée su

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Campos, Natalie Monique. "Satellite monitoring of current and historical development patterns in Big Sky, Montana 1990-2005 /." Thesis, Montana State University, 2008. http://etd.lib.montana.edu/etd/2008/campos/CamposN0508.pdf.

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The goal of this study was to map current and historical development patterns in Big Sky, Montana. Object-oriented classifications of a high-resolution Quickbird image and a fused Quickbird and LiDAR image were compared. Results demonstrated that object-oriented classification can be used to overcome the difficulty associated with pixel-based classification of high-resolution images through the addition of contextual metrics to the classification process. The fused classification resulted in decreased errors of commission and omission for each class, but the differences between the classificat

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Sivarajan, Saravanan. "Estimating Yield of Irragated Potatoes Using Aerial and Satellite Remote Sensing." DigitalCommons@USU, 2011. http://digitalcommons.usu.edu/etd/1033.

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Multispectral aerial and satellite remote sensing plays a major role in crop yield prediction due to its ability to detect crop growth conditions on spatial and temporal scales in a cost effective manner. Many empirical relationships have been established in the past between spectral vegetation indices and leaf area index, fractional ground cover, and crop growth rates for different crops through ground sampling. Remote sensing-based vegetation index (VI) yield models using airborne and satellite data have been developed only for grain crops like barley, corn, wheat, and sorghum. So it becomes

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